. American engineer and railroad journal . gthat time the crane and its operator and slinger or craneattendant are used just long enough to carry wheels back andforth, but they do not help to loosen or fasten the wheelsin the machine. The time it takes the operator of the ma-chine and his helper to set or change the machine from a cer-tain size of tire to another size is from 15 to 20 minutes. The helper, in addition to assisting in putting in and takingout the wheels, cleans the axles and paints them with amixture of white lead and lard oil (a pound of white lead toa pint of lard oil). The st
. American engineer and railroad journal . gthat time the crane and its operator and slinger or craneattendant are used just long enough to carry wheels back andforth, but they do not help to loosen or fasten the wheelsin the machine. The time it takes the operator of the ma-chine and his helper to set or change the machine from a cer-tain size of tire to another size is from 15 to 20 minutes. The helper, in addition to assisting in putting in and takingout the wheels, cleans the axles and paints them with amixture of white lead and lard oil (a pound of white lead toa pint of lard oil). The strains on the axle while the tiresare being turned cause the oil to ooze out of cracks anddefects in the axles, are thus located. The helper also keepsthe machine and its surroundings clean and removes all cut-tings to the scrap yard. A machine operated under the conditions stated above iscapable of turning out five pairs of old 84 in. driving wheeltires in ten hours or six pairs of old 47 in. driving tires in J J ■; I o !° 3 f : I ^-4*. Forming Tool, Eight Hand —IX- T ±j\ FIG. 6 ten hours, or, in other words, will turn out in two days of 10 hours each, three sets of old 57 in. consolidation engine driving wheel tires. On one occasion after the machine was set, three pairs of 69 in. driving wheel tires with flat spots were turned in six hours, a 5/16-in. cut with a %,-in. feed had to be removed to clean up the flat (hard) or skidded spots and this required, at some parts of the tires, as much as 7/16 of an in. in depth to be turned off. On another occasion three pairs of 63 in., wheels which were not badly worn but had been skidded, were turned in five hours, including the time to set the machine for that size of tire. Below is given the time it takes for the different operations to turn both flange and blind tires complete. Flange. Blind. Make or Brand Krupp» Krupp* Diameter 69 Ins. 69 ins. Width 6% 6 To pick up tires from floor and set In mach. ready for cut . 11
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
